How to Tell If Your Tea is Good Quality | Tea Guide Zurich

Learn what makes good quality tea and the real differences between white, green, oolong, black, and pu'er tea. Expert guide from Zurich's certified tea sommelier.

By Tea master • Oct 27, 2025, 10:00 pm

How to Tell If Your Tea Is Actually Good Quality (And Why Most People Can't)

You're standing in a tea shop in Zurich. Two green teas. One costs CHF 15. One costs CHF 45.

Which one is better? If you're not sure—you're not alone.

Most tea lovers in Switzerland drink tea every day but couldn't tell you what makes one tea higher quality than another. They know they like certain teas. But why? What's the actual difference?

And when someone mentions "white tea" or "pu'er" it sounds like a different language. Here's the truth: understanding tea quality isn't complicated. You've just never been shown what to look for.


The Problem: Everyone Drinks Tea, But Nobody Understands It

Walk into any café in Zurich. Order a "green tea." What you get? A tea bag. Hot water. Three minutes. Done. But here's what most people don't know:

That green tea could taste completely different depending on:

  • Where it was grown (China? Japan? Taiwan?)
  • How it was processed (steamed? pan-fired? shade-grown?)
  • When it was harvested (spring? summer?)
  • How long it's been sitting in that bag

Two "green teas" can be as different as a Merlot and a Pinot Noir.

But because no one explains this, most people think all green tea tastes the same—slightly bitter, slightly grassy, forgettable.


What Actually Makes Tea "Good Quality"?

Let's make this simple. Good quality tea has three clear signs:

1. Whole Leaves, Not Dust

Open your tea bag. What do you see?

If it's powder or tiny broken pieces—that's not quality. That's what's left after whole leaves are processed.

Quality tea = whole leaves. You should see actual leaf shapes, not dust.

Why? Because when leaves are broken, they lose their essential oils (the part that creates aroma and flavor). What's left is just... bitter water.

2. Clear Origin Story

Quality tea tells you where it's from. Not just "China." But which region. Which mountain. Sometimes even which garden.

Why does this matter?

Because tea, like wine, tastes like its environment. Alishan Oolong from Taiwan's high mountains tastes floral and soft because of the altitude and mist. Longjing from Hangzhou tastes nutty and sweet because of different soil.

No origin = no story = usually low quality.

3. Fresh, Not Stale

Tea has a shelf life. Most people don't know this.

Green tea and white tea are best within 12-18 months of harvest. Oolong within 2 years. Black tea can last longer.

But that tin sitting on your shelf for 3 years? It's not "bad," but it's definitely not fresh.

Fresh tea smells alive. Stale tea smells like cardboard.


The 6 Types of Tea (And Why They're Not Just Different Flavors)

Here's what confuses most people: They think white tea, green tea, black tea are different plants. They're not. All real tea comes from the same plant: Camellia sinensis. The difference? How the leaves are processed after they're picked.

Think of it like this: grapes can become white wine, rosé, or red wine depending on how they're made. Tea works the same way.

White Tea

  • Process: Barely touched. Just withered and dried.
  • Flavor: Light, delicate, slightly sweet.
  • Why it matters: This is tea in its most natural form. If you want to taste what tea actually is, start here.

Yellow Tea

  • Process: Like white tea, but with a slow oxidation step that creates a golden color.
  • Flavor: Mellow, smooth, almost creamy.
  • Why it's rare: The hardest to make. Very few producers still do it traditionally.

Green Tea

  • Process: Heated quickly to stop oxidation. Stays green.
  • Flavor: Fresh, grassy, sometimes nutty or sweet (if done right—not bitter).
  • Common mistake: Most people brew it too hot and too long. That's why it tastes bitter.

Oolong Tea

  • Process: Partially oxidized. Somewhere between green and black.
  • Flavor: Complex. Can be floral, fruity, roasted, creamy—depends on oxidation level.
  • Why tea lovers obsess over it: Every oolong is different. It's the most diverse category.

Black Tea

  • Process: Fully oxidized. Leaves turn dark.
  • Flavor: Bold, malty, sometimes sweet or fruity.
  • Why it's popular in the West: Stronger flavor. Works with milk. Holds up to sugar.

Pu'er Tea

  • Process: Fermented and aged. Can be stored for decades.
  • Flavor: Earthy, deep, smooth. Gets better with age (like wine).
  • Why it's misunderstood: It tastes completely different from other teas. People either love it or don't get it at all.

How to Actually Learn This (Without Studying for Years)

Here's the challenge:

You can read about tea all day. But until you taste the difference side by side, it doesn't really click.

That's why we created the World Tea Tasting – Private Workshop here in Zurich.

It's a 2-hour guided tasting where you experience all 6 types of tea—white, yellow, green, oolong, black, and pu'er—in one session.

Not from a book. From actual cups in front of you.

What You'll Understand After 1 Hours:

  • How to identify good quality tea by sight, smell, and taste
  • Why the same tea tastes different depending on how you brew it
  • What makes each tea type unique (and which one matches your taste)
  • How to brew tea properly (temperature and timing actually matter)
  • Which teas are worth the price—and which ones aren't

It's limited to 4 people per session (weekdays only) because this isn't a lecture. It's a conversation. A guided discovery.

You taste. You smell. You ask questions. And by the end, you actually know what you're drinking.

[Reserve Your Spot in the World Tea Tasting Workshop]